How do I reset the MMI (Multi-Media Interface) on my Audi A4?

I recently experienced some issues with my MMI system on my Audi A4. How can I reset the system and get it working properly again?

To reset the MMI on your Audi A4, start by turning off the ignition and removing the key. Then, open the driver's side door and press and hold the 'Menu' button on the MMI control panel. Continue holding the button while turning on the ignition without starting the engine and waiting for the MMI system to reset. Finally, release the 'Menu' button and wait for the system to restart. You should now have a fully functioning MMI system again.